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Article
Publication date: 6 March 2019

Jaime A. Teixeira da Silva, Kwabena Osei Kuffour Adjei, Christopher M. Owusu-Ansah, Radhamany Sooryamoorthy and Mulubrhan Balehegn

The purpose of this paper is to assess the status of the open access (OA) movement on the African continent, and if there is any financial or moral exploitation by dominant…

441

Abstract

Purpose

The purpose of this paper is to assess the status of the open access (OA) movement on the African continent, and if there is any financial or moral exploitation by dominant “foreign” world powers. OA provided the African intellectual community with a tool to prove its academic prowess and an opportunity to display cultural and intellectual independence. OA publishing is prone to abuse, and some in Africa have sought to exploit the OA boom to profit from non-academic activity rather than use this tool to glorify Africa’s image and diversity on the global intellectual stage. These issues are explored in detail in the paper.

Design/methodology/approach

The authors broadly assessed literature that is related to the growth and challenges associated with OA, including the rise of OA mega journals, in Africa.

Findings

African OA journals and publishers have to compete with established non-African OA entities. Some are considered “predatory”, but this Jeffrey Beall-based classification may be erroneous. Publishing values that African OA publishers and journals aspire to should not equal those published by non-African publishing entities. Africa should seek solutions to the challenges on that continent via Africa-based OA platforms. The budding African OA movement is applauded, but it must be held as accountable as any other OA journal or publisher.

Originality/value

African scholars need to reassess the “published in Africa” OA image.

Details

Online Information Review, vol. 43 no. 4
Type: Research Article
ISSN: 1468-4527

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Article
Publication date: 1 December 2006

Dumitru Radoiu, Calin Enachescu and Osei Adjei

Recent technological advances have created volumes of data such that, unless some effective methods are used to analyse them, they will be either wasted or under‐examined for…

612

Abstract

Purpose

Recent technological advances have created volumes of data such that, unless some effective methods are used to analyse them, they will be either wasted or under‐examined for their useful information content. Scientific data visualization is an attempt to use graphical and numerical tools to extract information contained in data and hence to allow its analysis. This paper seeks to present a systematic approach to the development of tools for scientific data visualization.

Design/methodology/approach

It is shown that the approach to implement these tools involves four major steps: description of a reference model, validation of the data process, description of the software component and the design and implementation of the visualization tool.

Findings

This approach is substantiated by defining conditions suitable for scientific data visualization processes, in a relaxed manner. These conditions are subsequently refined more formally. Definitions and theorems of the proofs are succinctly discussed.

Originality/value

The mathematical description of the visualization process is necessary to understand and maintain some significant reduction in errors in scientific visualization processes.

Details

Engineering Computations, vol. 23 no. 8
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 1 July 2004

Chengdong Wu, Yong Yue, Mengxin Li and Osei Adjei

This paper presents a comprehensive review of the available literature on applications of the rough set theory. Concepts of the rough set theory are discussed for approximation…

2211

Abstract

This paper presents a comprehensive review of the available literature on applications of the rough set theory. Concepts of the rough set theory are discussed for approximation, dependence and reduction of attributes, decision tables and decision rules. The applications of rough sets are discussed in pattern recognition, information processing, business and finance, industry, environment engineering, medical diagnosis and medical data analysis, system fault diagnosis and monitoring and intelligent control systems. Development trends and future efforts are outlined. An extensive list of references is also provided to encourage interested readers to pursue further investigations.

Details

Engineering Computations, vol. 21 no. 5
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 1 February 2022

Moses Asori, Emmanuel Dogbey, Anthony Kwame Morgan, Solomon Twum Ampofo, Robert Kwame Jumah Mpobi and Daniel Katey

The study aimed to use geographic information system (GIS) based multi-criteria decision making analysis (GIS-MCDA) to select areas suitable for siting landfills in Ashanti…

367

Abstract

Purpose

The study aimed to use geographic information system (GIS) based multi-criteria decision making analysis (GIS-MCDA) to select areas suitable for siting landfills in Ashanti region. It also sought to ascertain variables most sensitive to the siting of landfill in the region.

Design/methodology/approach

This study utilized GIS-based Multi-criteria decision making analysis –AHP to model and select areas most suitable to siting landfills within the region. Overall, 16 variables including wind speed and hydraulic conductivity (which were previously neglected in landfill siting in Ghana) were identified through comprehensive literature review. These variables were weighted using AHP method and integrated using the weighted linear combination (WLC) in GIS environment to develop five sub-models: the physical environmental, sociocultural, economic/technical, climatic and hydrogeological sub-models. These sub-models were further weighted and then integrated to derive the final suitability model.

Findings

Results show that 13% (3,067 km2) of the region was identified as most suitable to siting engineered landfills. The study also identified 11 sites which are considered most suitable for situating landfills. On a sensitivity angle, hydrogeological (R2 = 0.5923; p = 0.003) and physical environmental sub-model (R2 = 0.254; p = 0.034) significantly predicted the final suitability model developed.

Practical implications

Ghana's Landfill Guidelines seeks to optimize site selection and ancillary services that culminate into achieving sanitary landfills by 2020. Evidence still abounds on the unsuitability of existing and in some cases, new landfill sites presenting environmental and social negative impacts. The comprehensive evaluation of most crucial variables – social and environmental factors that determine an optimal landfill location – will be of immense help to policy planners like the Environmental Protection Agency (EPA) towards upgraded landfills. The authors hope that, concerned agencies will adopt the model in the study and integrate into their existing landfill suitability modeling techniques to provide a more grounded framework that optimizes landfill site selection within the study area.

Originality/value

This study is the first attempt to consider a regional-level waste collection site selection in Ghana using comprehensive sets of social and environmental factors and will therefore contribute immensely to EPA's goal of achieving upgraded landfills by 2022.

Details

Management of Environmental Quality: An International Journal, vol. 33 no. 3
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 1 February 2016

Titus Ebenezer Kwofie, Samuel Afram and Edward Botchway

The nature and characteristics of critical success factors (CSFs) that influence success on public private partnership (PPP) arrangements on different project typologies vary…

1537

Abstract

Purpose

The nature and characteristics of critical success factors (CSFs) that influence success on public private partnership (PPP) arrangements on different project typologies vary between countries and regions. Studies confirm the lack of success on PPP approach on public housing project (PHP). The main challenge to PPP-PHP success has been identifying, analysing, categorizing and matching CSFs that are likely to influence the PPP-PHP outcome. The purpose of this paper is to identify the CSFs that influence PPP-PHP delivery in Ghana. This is premised on the theoretical implications that understanding the factors that influence the success on PPP-PHP projects is critical.

Design/methodology/approach

By adopting a 16 CSFs from literature and using a questionnaire survey, the factors that are critical to success on PPP-PHP approach in Ghana were identified. The questionnaires were administered on participants that have been involved in PPP-PHPs in Ghana.

Findings

The results revealed six CSFs that are critical towards success on PPP-PHPs in Ghana. The results also do not show significant variability in the agreement by the public and private stakeholder.

Practical/implications

The findings present useful lessons for parties in PPP-PHPs in Ghana to focus their attention to engender the needed atmosphere towards successful delivery in Ghana in the formulation of policies, decision frameworks and delivery strategies.

Originality/value

The study presents a critical success model that is applicable to PPP-PHP delivery in Ghana and potentially to other developing countries with similar socio-economic, political and organizational characteristics especially in Sub-Saharan Africa. It also affirms the fact that CSFs are contextual to project typologies and that different project types will reveal CSFs with varying significance in ranking. The findings should help in the development of efficient frameworks and policies for successes on PPP-PHPs in Ghana.

Details

Built Environment Project and Asset Management, vol. 6 no. 1
Type: Research Article
ISSN: 2044-124X

Keywords

Available. Open Access. Open Access
Article
Publication date: 19 May 2023

Emmanuel Asafo-Adjei, Anokye M. Adam, Peterson Owusu Junior, Clement Lamboi Arthur and Baba Adibura Seidu

This study investigates information flow of market constituents and global indices at multi-frequencies.

536

Abstract

Purpose

This study investigates information flow of market constituents and global indices at multi-frequencies.

Design/methodology/approach

The study’s findings were obtained using the Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (I-CEEMDAN)-based cluster analysis executed for Rényi effective transfer entropy (RETE).

Findings

The authors find that significant negative information flows among sustainability equities (SEs) and conventional equities (CEs) at most multi-frequencies, which exacerbates diversification benefits. The information flows are mostly bi-directional, highlighting the importance of stock markets' constituents and their global indices in portfolio construction.

Research limitations/implications

The authors advocate that both SE and CE markets are mostly heterogeneous, revealing some levels of markets inefficiencies.

Originality/value

The empirical literature on CEs is replete with several dynamics, revealing their returns behaviour for diversification purposes, leaving very little to know about the returns behaviour of SE. Wherein, an avalanche of several initiatives on Corporate Social Responsibility (CSR) enjoin firms to operate socially responsible, but investors need to have a clear reason to remain sustainable into the foreseeable future period. Accordingly, the humble desire of investors is the formation of a well-diversified portfolio and would highly demand stocks to the extent that they form a reliable portfolio, especially, amid SEs and/or CEs.

研究目的

本研究擬審查多頻率的及為市場成份的信息流和全球指數。

研究設計/方法/理念

研究人員使用基於改良完全集合經驗模態分解自適應噪聲(Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise)的聚類分析法,取得Rényi有效轉移熵,藉此得到研究結果。

研究結果

我們發現、於大部份多頻率,在持續性股票和傳統股票間有顯著的負信息流動,這會增加多樣化的益處。這些信息流大部份是雙向的,這強調了股票市場成份及其全球指數在構建投資組合上的重要性。

研究的局限/啟示

我們認為持續性股票市場和傳統股票市場大多為異質市場,這顯示了市場的低效率,而且這低效率的程度頗大。

研究的原創性/價值

關於傳統股票的實證性文獻裡是充滿了變革動力的,這顯示了它們以多樣化為目的的回報行為。這使我們對關於持續性股票的回報行為、認識變得實在太少了。於此,大量的企業社會責任的新措施不斷提醒各公司、要本著企業社會責任的理念去營運;但投資者需清晰明白他們為何需在可見的將來保持可持續性。因此,他們卑微的願望是一個較好的多樣化投資組合得以形成,故此他們高度要求股票要有組成可靠投資組合的性質和能力,特別是在持續性股票和/或傳統股票當中。

Details

European Journal of Management and Business Economics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2444-8451

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Article
Publication date: 13 January 2020

Peter Adjei-Bamfo, Bernard Bempong, Jane Osei and Simonov Kusi-Sarpong

The purpose of this paper is to propose a new typological environmentally sustainable human resources management evaluation framework to aid green candidate selection process for…

2029

Abstract

Purpose

The purpose of this paper is to propose a new typological environmentally sustainable human resources management evaluation framework to aid green candidate selection process for environmental management in developing economy local government agencies.

Design/methodology/approach

Presenting the narrative of developing economies local government context, this paper conducts an extensive review of relevant literature on green human resources management (GHRM) and green recruitment and selection.

Findings

Drawing on Siyambalapitiya et al. (2018) and the resource-based theory (RBT), the paper proposes and discusses an evaluation framework for guiding organizations’ green candidate selection process. The framework comprises of seven stages which begins with “training recruiters on green candidate assessment” to “making selection decision and inducting selected candidate” on organization’s environmental management policies and practices, and its green values.

Research limitations/implications

Application of the proposed framework has implications for enhancing organizations’ efficiency, reducing cost, eliminating environment waste, as well as fostering green culture among employees. This paper also extends the strand of RBT by explaining how organizations could assess and select job applicants with significant intangible capability such as environmental management skills, knowledge and values to foster its competitive urge and sustainability.

Originality/value

This paper makes two main contribution to the GHRM literature. First, the paper proposes a new typological environmentally sustainable human resources management evaluation framework. Secondly, the paper focuses the framework on developing economies and local government organizations context, something that is currently non-existent.

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Article
Publication date: 8 July 2022

Hannah Vivian Osei, Herbert Ofori, Emmanuella Otsen, Theresa Adjei and Lexsee Odoom

This study aims to examine the impact of leaders’ abusive supervision on employees’ work engagement in the health sector. The study further examined the interactive effect of…

1038

Abstract

Purpose

This study aims to examine the impact of leaders’ abusive supervision on employees’ work engagement in the health sector. The study further examined the interactive effect of leaders’ abusive supervision and employees’ proactive personality on work engagement via employees’ silence.

Design/methodology/approach

Data were collected from 343 health workers in five hospitals in Ghana. The Hayes Process Macro and AMOS were used to analyse mediation, moderation and moderated-mediation relationships

Findings

The study findings indicate that leaders’ abusive supervision has a detrimental impact on employees’ work engagement. The study further found that employees’ silence did not mediate the relationship between abusive supervision and work engagement. Employees’ proactive personalities positively moderated the relationship between abusive supervision and employees’ silence.

Originality/value

This study advances understanding of how perceived leaders’ abusive supervision affects health workers’ work engagement. This study contributes to the literature by confirming employees’ silence as a pathway linking abusive supervision to work engagement. The study further identifies employees’ proactive personality as a moderating variable in the relationship between abusive supervision and employees’ silence.

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Article
Publication date: 24 December 2020

James Osei Mensah, Seth Etuah, Emmanuel Fiifi Musah, Frederick Botchwey, Loretta Oppong Adjei and Kofi Owusu

This study aims to analyse consumers' preferences for domestic chicken cut parts and the premium they are willing to pay for the various parts using data from a contingent…

449

Abstract

Purpose

This study aims to analyse consumers' preferences for domestic chicken cut parts and the premium they are willing to pay for the various parts using data from a contingent valuation survey of individual chicken meat consumers in the Kumasi Metropolitan Area of Ghana.

Design/methodology/approach

The willingness to pay premiums are obtained using the double-bounded dichotomous choice approach. Determinants of the consumers' willingness to pay amounts are identified through a multivariate Tobit regression analysis.

Findings

The study finds that the wing is the most preferred chicken part by the consumers followed by the thighs. All consumers who express interest in a particular domestic chicken cut part are willing to pay a premium. Age, sex, years of formal education, household size and income level of the consumers as well as convenience, product availability and perceived wholesomeness of the product are identified as the key factors that influence the willingness to pay amounts.

Research limitations/implications

The findings and recommendations of this study could serve as a guide to domestic poultry meat producers and investors in Ghana and other developing countries on how to process or package the meat for the market or consumers. This could further contribute to policy formulation regarding the development of the domestic poultry meat industry.

Originality/value

The uniqueness of this study is seen in the contributions it makes to the literature on consumer preferences and willingness to pay for chicken cut parts from a developing country perspective where the market for these products is virtually non-existent.

Details

Journal of Agribusiness in Developing and Emerging Economies, vol. 12 no. 1
Type: Research Article
ISSN: 2044-0839

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Article
Publication date: 14 February 2024

Benedict Ansere, Joshua Ayarkwa, Michael Nii Addy, Dickson Osei-Asibey and Ivy Maame Abu

This study aims to assess the awareness and knowledge level of procurement officers (POs) in Ghanaian tertiary educational institutions regarding sustainability in general and…

191

Abstract

Purpose

This study aims to assess the awareness and knowledge level of procurement officers (POs) in Ghanaian tertiary educational institutions regarding sustainability in general and specifically on environmental sustainability in the Public Procurement Act 2003 (Act 663) as amended.

Design/methodology/approach

Through purposive sampling technique and face-to-face interviews using semi-structured open-ended questions, qualitative data was collected from 19 POs who are well vested in the procurement profession and willingly agreed to partake in the research. The qualitative data were analyzed using content analysis technique to help organize and elicit meaning from the data collected and to draw realistic conclusions from it.

Findings

The results showed that most POs were aware of the Public Procurement Act 2003 (Act 663) as amended, primarily through seminars and workshops organized by the Public Procurement Authority. The interviewees demonstrated a good understanding of sustainable procurement, considering its social, environmental and economic aspects. However, one respondent primarily associated sustainability with only environmental issues. The POs were, however, of the view that the Amended Act 914 (2016) does not give detailed highlights on environmental sustainability, making implementation very difficult, especially regarding the procurement of goods. Overall, the findings indicate a positive level of environmental sustainability awareness and knowledge among the interviewed POs regarding the Public Procurement Act 2003 (Act 663) as amended.

Social implications

The findings from the study could be used by policymakers to strategize educational campaigns by using the POs’ knowledge and awareness to the implementers of Act 663 (2003) as amended to effectively ensure environmental sustainability in procurement practices. The findings from the study have also contributed to the literature on procurement policy by drawing the attention of policy formulators to give equal attention to all the sustainability pillars, i.e. social, economic and environmental. This would consequently help the implementers to contribute to achieving sustainable development.

Originality/value

This study is one of the few empirical qualitative types of research seeking the views of POs in tertiary educational institutions in Ghana on sustainability and environmental sustainability as enshrined in the Public Procurement Act 2003 (Act 663) as amended. The findings give positive feedback to policymakers on the knowledge and awareness level of the POs on environmental sustainability and highlight the importance of awareness programmes and educational initiatives by the Public Procurement Authority and other stakeholders to ensure compliance with the Act.

Details

Journal of Public Procurement, vol. 24 no. 2
Type: Research Article
ISSN: 1535-0118

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